XH-M543 Audio Amplifier Module Dual-channel Stereo TPA3116D2 DIY Digital Amplifier 2x120W High Power Efficient for Sound Systems  Feature:  1. Efficient Array Heat Sink: The chipset produces heat that flows through the staggered channels of the efficient array heat sink, resulting in a higher rate of heat dissipation.  2. High-Efficiency Stereo Digital Amplifier: The TPA3116D2 chip is a digital amplifier chip that delivers power efficiency greater than 90%, low idle loss characteristics, and minimal heat generation.  3. Audiophile-Grade Capacitor: Metalized polyester film capacitors that offer superior self-healing capacity and high pulse strength, ensuring excellent reliability.  4. PCB: The circuit board layout is aesthetically pleasing, with carefully selected components and surface-mount technology, as well as few plug-in soldering points on the back of the double-layer circuit board.  5. DIY Audio Amplifier: This product allows you to build your own high-power stereo amplifier, which is an excellent choice for anyone interested in DIY audio projects. Specification:  Origin: Mainland China  Product model: XH-M543  Product chip: TPA3116D2  Supply voltage: DC12-26V  Output power: Maximum 120 * 2W  Signal to noise ratio: 100db  Number of channels: Dual channel stereo  Product size: About 92x68x16mm/3.62x2.67x0.63inch  Product weight: 68g         Note:  Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you  Please allow 1-2cm measuring deviation due to manual measurement.                       Packages:      1 x Amplifier Board